diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2005-01-09 17:50:27 +0000 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2005-01-09 17:50:27 +0000 |
commit | a00c59151172cb7d77773ca0bb8adb388f58ea77 (patch) | |
tree | 68519004a9243611f2e23ec42638bc508a0c9fda /progs/demos/gears.c | |
parent | a4a31c5d76874be8dd30f6809cc63fb27069c135 (diff) |
rotate at fixed rate (Marcelo Magallon)
Diffstat (limited to 'progs/demos/gears.c')
-rw-r--r-- | progs/demos/gears.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/progs/demos/gears.c b/progs/demos/gears.c index e9061ed6c9..fc797eb904 100644 --- a/progs/demos/gears.c +++ b/progs/demos/gears.c @@ -1,4 +1,3 @@ - /* * 3-D gear wheels. This program is in the public domain. * @@ -28,6 +27,7 @@ static GLint T0 = 0; static GLint Frames = 0; static GLint autoexit = 0; + /** Draw a gear wheel. You'll probably want to call this function when @@ -215,7 +215,14 @@ draw(void) static void idle(void) { - angle += 2.0; + static double t0 = -1.; + double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; + if (t0 < 0.0) + t0 = t; + dt = t - t0; + t0 = t; + + angle += 70.0 * dt; /* 90 degrees per second */ glutPostRedisplay(); } |